PT-2026-86299 · Xmlsoft · Libxml2

CVE-2026-86138

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Published

2026-09-05

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Updated

2026-09-05

CVSS v3.1

6.9

Medium

VectorAV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
In libxml2 before 2.15.4, xmlDictAddQString in dict.c has an integer overflow and resultant heap-based buffer overflow.

Fix

Integer Overflow

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Weakness Enumeration

Related Identifiers

CVE-2026-86138

Affected Products

Libxml2